(A) Anteroposterior and (B) oblique right foot’s X-ray of 28-year old male, 15 days after he underwent a total hip replacement due to an advanced Legg-Perthes disease on his right hip, showing minimal osteoporotic changes on the right foot and ankle, especially at the tarsus and metatarsophalangeal joints. (C) Third-phase anteroposterior and (D) lateral bone scan images of both legs and feet of the same patient, displaying increased isotope accumulation along the right foot.